CN205401879U - Rotation type variable frequency switching valve - Google Patents

Rotation type variable frequency switching valve Download PDF

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Publication number
CN205401879U
CN205401879U CN201620121687.9U CN201620121687U CN205401879U CN 205401879 U CN205401879 U CN 205401879U CN 201620121687 U CN201620121687 U CN 201620121687U CN 205401879 U CN205401879 U CN 205401879U
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CN
China
Prior art keywords
valve
hole
spool
medium
annular
Prior art date
Application number
CN201620121687.9U
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Chinese (zh)
Inventor
赵玉侠
施银峰
Original Assignee
江苏盈丰智能工程科技有限公司
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Application filed by 江苏盈丰智能工程科技有限公司 filed Critical 江苏盈丰智能工程科技有限公司
Priority to CN201620121687.9U priority Critical patent/CN205401879U/en
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Publication of CN205401879U publication Critical patent/CN205401879U/en

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Abstract

The utility model provides a rotation type variable frequency switching valve, which comprises the following components: a valve body, and a valve cor, drive movable valve element pivoted servo motor, the spool chamber has been seted up on the valve body, the perforation has been seted up on the case, the medium hand -hole has been seted up respectively to the both sides of valve body and main medium portals, annular gas storage tank and ring packing groove have been seted up on the pore wall of the spool chamber of valve body, the perforation internal fixation is provided with annular gasbag, the middle part of annular gasbag has the through hole, inlet channel and exhaust passage have been seted up on the case, axial passage's one end is the blind hole, axial passage's the other end is connected with the gas holder, inlet channel and exhaust passage all are linked together with the gas holder, all be provided with one -way electromagnetism pneumatic valve between inlet channel and exhaust passage and the gas holder, medium hand -hole department is provided with the flow measurement meter, the flow measurement meter is connected with two one -way solenoid valve's controller, form the self -lubricating through compressed air, can adjust according to the size of medium flow is automatic in addition.

Description

Rotary frequency conversion switching valve
Technical field
This utility model relates to a kind of switching valve, switches valve particularly to a kind of rotary frequency conversion.
Background technology
Switching valve of the prior art, lubricating oil is generally adopted to be lubricated, it is thus desirable to offer oil circuit on valve body, and in order to reduce friction, need between spool with valve body to adopt rolling bearing to be connected, then leakage is easily caused, sealing effectiveness is poor, therefore the switching valve user demand of high rotating speed, big flow cannot be met, and valve body structure is complicated, processing more inconvenient, the existing usual uninterrupted of switching valve is uncontrollable in addition, namely different occasions can only use the switching valve of respective model, uses more inconvenient.
Summary of the invention
The purpose of this utility model is in that to overcome the deficiency of above-mentioned technology, thus providing a kind of rotary frequency conversion switching valve, form self-lubricating by compressing air, it is not necessary to use lubricating oil to be lubricated, and without using rolling bearing, additionally automatically can be adjusted according to the size of rate-of flow.
This utility model be employed technical scheme comprise that such: rotary frequency conversion switching valve, its working media is compression air, including valve body, rotate and be arranged in described valve body the spool matched with described valve body, drive the servomotor of described valve core rotation, described valve body axially offers the spool chamber matched with described spool along it, described spool radially offers perforation, the both sides of described valve body radially offer medium hand-hole respectively and main medium portals, described medium hand-hole portals with described main medium and is connected with described spool chamber respectively, described medium hand-hole, described main medium portals and described perforation is centrally located at same level;
The hole wall of the spool chamber of described valve body offers some annular air reservoirs and at least two annular seal groove, some described annular air reservoirs are all connected with the axial passage axially offered along described valve body, described axial passage is connected with described medium hand-hole, described annular air reservoir, described annular seal groove are along the axial distribution of described valve body, some described annular air reservoirs, between two described annular seal grooves, are provided with O-ring seal in described annular seal groove;
The annular air-pocket of concentric setting it is fixedly installed in described perforation, the middle part of described annular air-pocket has the through hole for medium traverse, described spool offers the inlet channel and exhaust passage that are connected with described annular air-pocket, one end of described axial passage is blind hole, the other end of described axial passage is connected to air accumulator, it is connected by pressure valve between described axial passage with described air accumulator, described inlet channel is connected with described air accumulator, described valve body offers steam vent, described exhaust passage is connected with described steam vent, the junction of described steam vent place and described inlet channel and described air accumulator is provided with Unidirectional solenoid valve, described medium hand-hole place is provided with the flow detection meter for detecting rate-of flow size, the controller of described flow detection meter and two described Unidirectional solenoid valves is connected.
Improve further: the both sides up and down that described main medium portals offer respectively portals from medium, described valve body offers with portal from medium described in two be connected be axially connected chamber, portal with described main medium and be connected in described axial connection chamber.
Improve further: be connected by the connecting hole radially extended along described valve body between described annular air reservoir and described axial passage, described connecting hole and described axial connection chamber are blind hole, and the one end in described connecting hole and described axial connection chamber seals by seal plug.
Improve further: being provided with the end cap for position limiting sealed between two ends and the described valve body of described spool, described end cap is fixed by Elastic buckle, and described spool offers the mounting groove for installing described Elastic buckle.
Improve further: pass through to be connected terminal between the motor shaft of described servomotor with described spool and be fixedly connected.
Improve further: the both ends up and down of described valve body all offer installation cavity, and described connection terminal is positioned at the installation cavity on described valve body top, and the end cap of described spool bottom is positioned at the installation cavity of described valve body lower portion.
Improve further: the surface of described spool offers twice annular positioning groove, and described annular positioning groove is positioned at the outside of described annular seal groove, in described annular positioning groove, be provided with the pushing out ring being made up of politef.
Improve further: the contact surface of described valve body and described spool has wear-and corrosion-resistant layer.
Improving further: the spool chamber hole wall of described valve body has phosphate coating, the surface of described spool has titanium nitride and processes layer.
Improve further: described medium hand-hole, described main medium portal and described portal from medium in be provided with snap joint.
By adopting preceding solution, the beneficial effects of the utility model are: compression air is formed lubrication air film by medium hand-hole in axial passage entrance annular air reservoir, then by compressing air self-lubricating between spool and valve body, high lubricating effect, and not easily reveal, suitable in high speed rotating, in addition by driven by servomotor valve core rotation, it is capable of frequency conversion switching, in addition by annular air-pocket being inflated or exitting, thus regulating the size of through hole, in order to be applicable to different occasion, easy to use.
Accompanying drawing explanation
Fig. 1 is this utility model schematic diagram one;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is this utility model schematic diagram two;
Fig. 4 is the B-B sectional view of Fig. 3;
Fig. 5 is valve body schematic diagram;
Fig. 6 is spool schematic diagram.
Wherein: 1, valve body;2, spool;3, servomotor;4, annular air reservoir;5, annular seal groove;6, perforation;7, medium hand-hole;8, main medium portals;9, axial passage;10, chamber is axially connected;11, portal from medium;12, connecting hole;13, seal plug;14, end cap;15, Elastic buckle;16, pushing out ring is propped up;17, air accumulator;18, annular air-pocket.
Detailed description of the invention
This utility model is further illustrated below in conjunction with the drawings and specific embodiments.
As shown in figures 1 to 6, this utility model discloses a kind of rotary frequency conversion switching valve, its working media is compression air, including valve body 1, rotate and be arranged in described valve body 1 spool 2 matched with described valve body 1, drive the servomotor 3 that described spool 2 rotates, described valve body 1 axially offers the spool chamber matched with described spool 2 along it, described spool 2 radially offers perforation 6, the both sides of described valve body 1 radially offer medium hand-hole 7 respectively and main medium portals 8, described medium hand-hole 7 portals with described main medium and 8 is connected with described spool chamber respectively, described medium hand-hole 7, described main medium portal 8 and described perforation 6 be centrally located at same level;
The hole wall of the spool chamber of described valve body 1 offers some annular air reservoirs 4 and at least two annular seal groove 5, some described annular air reservoirs 4 are all connected with the axial passage 9 axially offered along described valve body 1, described axial passage 9 is connected with described medium hand-hole 7, described annular air reservoir 4, described annular seal groove 5 are along the axial distribution of described valve body 1, some described annular air reservoirs 4, between two described annular seal grooves 5, are provided with O-ring seal in described annular seal groove 5;
nullThe annular air-pocket 18 of concentric setting it is fixedly installed in described perforation 6,The middle part of described annular air-pocket 18 has the through hole for medium traverse,Described spool 2 offers the inlet channel and exhaust passage that are connected with described annular air-pocket 18,One end of described axial passage 9 is blind hole,The other end of described axial passage 9 is connected to air accumulator 17,It is connected by pressure valve between described axial passage 9 with described air accumulator 17,Described inlet channel is connected with described air accumulator 17,Described valve body 1 offers steam vent,Described exhaust passage is connected with described steam vent,The junction of described steam vent place and described inlet channel and described air accumulator 17 is provided with Unidirectional solenoid valve,Described medium hand-hole 7 place is provided with the flow detection meter for detecting rate-of flow size,The controller of described flow detection meter and two described Unidirectional solenoid valves is connected.
Operation principle: servomotor 3 drives spool 2 to rotate, when medium hand-hole 7, perforation 6 and main medium portal 8 threes on time, compression air dielectric portals 8 discharges from main medium from medium hand-hole 7 through perforation 6, owing to adopting servomotor 3 to drive spool 2 to rotate, then the variable speed frequency of spool 2 controls, easy to use, and on valve body 1, offer annular air reservoir 4, Partial shrinkage air in medium hand-hole 7 enters in annular air reservoir 4 by axial passage 9, then lubrication air film is formed, for the lubrication between spool 2 and valve body 1, then without adopting lubricating oil to be lubricated, and avoid and offer oil circuit on valve body 1, avoid the leakage problem of lubricating oil, and adopt compression air self-lubricating, high lubricating effect, switching valve suitable in high speed rotating switching;
Flow-rate adjustment process: when the rate-of flow that flow detection meter detects medium hand-hole 7 place is bigger, the unidirectional electromagnetic gas valve of exhaust passage is opened and is exhausted by steam vent, compression gas in annular air-pocket 18 enters in air accumulator 17, then annular air-pocket 18 volume diminishes, then the area of through hole becomes big, it is adaptable to the medium of big flow passes through;When the ring flow that flow detection meter detects medium hand-hole 7 place is less, the unidirectional electromagnetic gas valve of inlet channel is opened, compression gas in air accumulator 17 is inflated in annular air-pocket 18, then the volume of annular air-pocket 18 becomes big, then the area of through hole diminishes, medium suitable in low discharge passes through, and the compression gas in air accumulator 17 is without additionally supplementing, and is directly supplemented by the compression gas medium passed through.
In order to meet different user demands, described main medium portal 8 both sides up and down offer respectively and portal 11 from medium, described valve body 1 offers with described in two from medium portal 11 be connected be axially connected chamber 10, portal with described main medium and 8 be connected in described axial connection chamber 10, user can adopt two from medium portal 11 and main medium portal 8 uses compression air, when need not use from medium portal 11 time, only need to be blocked.
For convenient processing and raising sealing effectiveness, between described annular air reservoir 4 and described axial passage 9, the connecting hole 12 by radially extending along described valve body 1 is connected, described connecting hole 12 and described axial connection chamber 10 are blind hole, and the one end in described connecting hole 12 and described axial connection chamber 10 seals by seal plug 13.
In order to spool 2 is carried out spacing while, spool chamber is effectively sealed, it is provided with the end cap 14 for position limiting sealed between two ends and the described valve body 1 of described spool 2, described end cap 14 is fixed by Elastic buckle 15, described spool 2 offers the mounting groove for installing described Elastic buckle 15, and by the mode of Elastic buckle 15, end cap 14 is fixed, not only easy to use, and convenient processing.
Connect in order to convenient, pass through to be connected terminal between the motor shaft of described servomotor 3 with described spool 2 to be fixedly connected, the both ends up and down of described valve body 1 all offer installation cavity, described connection terminal is positioned at the installation cavity on described valve body 1 top, and the end cap 14 of described spool 2 bottom is positioned at the installation cavity of described valve body 1 bottom.
So that ensure appropriate clearance between the spool chamber of spool 2 surrounding and valve body 1 before activation, ensure the balance between spool 2 and valve body 1, reduce friction, the surface of described spool 2 offers twice annular positioning groove, described annular positioning groove is positioned at the outside of described annular seal groove 5, is provided with the pushing out ring 16 being made up of politef in described annular positioning groove.
In order to improve service life, the contact surface of described valve body 1 and described both spools 2 has wear-and corrosion-resistant layer, and the spool chamber hole wall of described valve body 1 has phosphate coating, and the surface of described spool 2 has titanium nitride and processes layer.
Connect and Fast Installation in order to convenient, described medium hand-hole 7, described main medium portal 8 and described portalling from medium be provided with snap joint in 11.
Of the present utility model ultimate principle and principal character and advantage thereof have more than been shown and described; skilled person will appreciate that of the industry; this utility model is not restricted to the described embodiments; described in above-described embodiment and explanation is that principle of the present utility model is described; under the premise without departing from this utility model spirit and scope; this utility model also has various changes and modifications; these changes and improvements both fall within the scope of claimed this utility model, and this utility model claims scope and defined by appending claims and equivalent thereof.

Claims (10)

1. rotary frequency conversion switching valve, its working media is compression air, it is characterized in that: include valve body, rotate and be arranged in described valve body the spool matched with described valve body, drive the servomotor of described valve core rotation, described valve body axially offers the spool chamber matched with described spool along it, described spool radially offers perforation, the both sides of described valve body radially offer medium hand-hole respectively and main medium portals, described medium hand-hole portals with described main medium and is connected with described spool chamber respectively, described medium hand-hole, described main medium portals and described perforation is centrally located at same level;
The hole wall of the spool chamber of described valve body offers some annular air reservoirs and at least two annular seal groove, some described annular air reservoirs are all connected with the axial passage axially offered along described valve body, described axial passage is connected with described medium hand-hole, described annular air reservoir, described annular seal groove are along the axial distribution of described valve body, some described annular air reservoirs, between two described annular seal grooves, are provided with O-ring seal in described annular seal groove;
The annular air-pocket of concentric setting it is fixedly installed in described perforation, the middle part of described annular air-pocket has the through hole for medium traverse, described spool offers the inlet channel and exhaust passage that are connected with described annular air-pocket, one end of described axial passage is blind hole, the other end of described axial passage is connected to air accumulator, it is connected by pressure valve between described axial passage with described air accumulator, described inlet channel is connected with described air accumulator, described valve body offers steam vent, described exhaust passage is connected with described steam vent, the junction of described steam vent place and described inlet channel and described air accumulator is provided with Unidirectional solenoid valve, described medium hand-hole place is provided with the flow detection meter for detecting rate-of flow size, the controller of described flow detection meter and two described Unidirectional solenoid valves is connected.
2. rotary frequency conversion according to claim 1 switching valve, it is characterized in that: the both sides up and down that described main medium portals offer respectively portals from medium, described valve body offers with portal from medium described in two be connected be axially connected chamber, portal with described main medium and be connected in described axial connection chamber.
3. rotary frequency conversion according to claim 2 switching valve, it is characterized in that: be connected by the connecting hole radially extended along described valve body between described annular air reservoir and described axial passage, described connecting hole and described axial connection chamber are blind hole, and the one end in described connecting hole and described axial connection chamber seals by seal plug.
4. rotary frequency conversion according to claim 1 switching valve, it is characterized in that: between two ends and the described valve body of described spool, be provided with the end cap for position limiting sealed, described end cap is fixed by Elastic buckle, and described spool offers the mounting groove for installing described Elastic buckle.
5. rotary frequency conversion according to claim 1 switching valve, it is characterised in that: pass through to be connected terminal between the motor shaft of described servomotor with described spool and be fixedly connected.
6. rotary frequency conversion according to claim 5 switching valve, it is characterized in that: the both ends up and down of described valve body all offer installation cavity, described connection terminal is positioned at the installation cavity on described valve body top, and the end cap of described spool bottom is positioned at the installation cavity of described valve body lower portion.
7. rotary frequency conversion according to claim 1 switching valve, it is characterized in that: the surface of described spool offers twice annular positioning groove, described annular positioning groove is positioned at the outside of described annular seal groove, is provided with the pushing out ring being made up of politef in described annular positioning groove.
8. rotary frequency conversion according to claim 1 switching valve, it is characterised in that: the contact surface of described valve body and described spool has wear-and corrosion-resistant layer.
9. rotary frequency conversion according to claim 8 switching valve, it is characterised in that: the spool chamber hole wall of described valve body has phosphate coating, and the surface of described spool has titanium nitride and processes layer.
10. rotary frequency conversion according to claim 2 switching valve, it is characterised in that: described medium hand-hole, described main medium portal and described portal from medium in be provided with snap joint.
CN201620121687.9U 2016-02-16 2016-02-16 Rotation type variable frequency switching valve CN205401879U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620121687.9U CN205401879U (en) 2016-02-16 2016-02-16 Rotation type variable frequency switching valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620121687.9U CN205401879U (en) 2016-02-16 2016-02-16 Rotation type variable frequency switching valve

Publications (1)

Publication Number Publication Date
CN205401879U true CN205401879U (en) 2016-07-27

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105526396A (en) * 2016-02-16 2016-04-27 江苏盈丰智能工程科技有限公司 Rotary frequency conversion switch valve
CN111636979A (en) * 2020-06-08 2020-09-08 安徽九州云箭航天技术有限公司 Switch and flow regulating valve for liquid oxygen main circuit of pump pressure variable thrust liquid rocket engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105526396A (en) * 2016-02-16 2016-04-27 江苏盈丰智能工程科技有限公司 Rotary frequency conversion switch valve
CN111636979A (en) * 2020-06-08 2020-09-08 安徽九州云箭航天技术有限公司 Switch and flow regulating valve for liquid oxygen main circuit of pump pressure variable thrust liquid rocket engine

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GR01 Patent grant
AV01 Patent right actively abandoned
AV01 Patent right actively abandoned

Granted publication date: 20160727

Effective date of abandoning: 20170929